Question

Choose which of the following is a solution of x-2y=4.​

Answer 1

Step-by-step explanation:

x-2y=4.

multiply by 2 we get

2x+4y=8

a1/a2=1/2, b1/b2= -2/4=-1/2

hence it is a unique solution

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thank you. i think you are also in class 10 because i am also